A new standard for the backbone of a new breed Internet, IP 6, has passed through its second phase of testing in the US.

Testing has taken place at the University of New Hampshire. Participants in the test include the North American IPv6 Task Force, Internet2, the US Department of Defence and over 30 networking vendors and service providers, Silicon.com reports.

"IPv6 expands the pool of unique addresses available for connecting PCs and other devices in the Internet," the report claims, observing that the industry sees IPv6 as necessary to provide the sheer volume of IP addresses likely to be needed as Internet-connected devices explode on world markets.